"[The first] ten chapters...are an efficient, accessible, and
self-contained introduction to affine algebraic groups over an
algebraically closed field. The author includes exercises and the book
is certainly usable by graduate students as a text or for
self-study...the author [has a] student-friendly style... [The
following] seven chapters... would also be a good introduction to
rationality issues for algebraic groups. A number of results from the
literature...appear for the first time in a text."
-Mathematical Reviews (Review of the Second Edition)